Concepts and features
R&S
®
ZNB/ZNBT
243
User Manual 1173.9163.02 ─ 62
VNA
1
3
2
4
Upper Tone
DUT
1
2
Lower Tone
An external combiner is required anyway.
Operation with more than one source is
not
supported, if
part of the RF connection configuration.
The intermodulation distortion measurement can be extended to frequency-converting
DUTs. E.g., it is possible to feed the two-tone source signal to the RF input of a mixer
and measure the intermodulation distortion of the IF output signal, after conversion
with an additional LO signal.
Optional extensions and accessories